Compatibility of Different Injury Prevention Exercises in Athletes

Injury Prevention Clinical Trial

Official title:

Effects of Two Different Injury Prevention Resistance Exercise Protocols on the Hamstring Torque-Angle Relationship: A Randomized Controlled Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02311062
• Other study ID #: UoG INJ001
• Status: Completed
• Phase: N/A
• Start date: March 2012
• Est. completion date: June 2012

Study information

• Verified date: November 2023
• Source: University of Greenwich
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This investigation is aimed to examine the effects of two different exercise-oriented protocols on the knee torque-angle relationship of the knee flexors.

Thirty two young soccer players were be randomly assigned to three groups:

hamstring-eccentric (ECC, n=11), unstable-squatting (UNS, n=11) or control (C, n=10). The ECC and UNS groups performed eighteen sessions over 6 weeks of an injury prevention protocol, using only 3 hamstring-eccentric or unstable-squatting exercises. The angle-torque relationship was measured before and after the training intervention. Voluntary isometric torque was recorded at six test angles, with participants prone (35º-100º; 0º on full extension).

Description:

This study utilized a three parallel-groups randomized controlled design, where 3 between-participant conditions, ECC, UNS and C, were tested. Once considered eligible for the study, all participants were familiarized with the testing procedures. Participants attended the laboratory for a pre-training test session, where body mass, height and muscle functional parameters were recorded. Two days after their pre-test, participants including in ECC or UNS started a 6 weeks (18 sessions) training program while the control group did not perform any type of resistance training.

Nevertheless, during the 6 weeks intervention period all three groups continued with their normal recreationally physical activity consisting in 2 to 3 sessions per week of soccer training or friendly matches. Two days after the end of the intervention period muscle function was re-tested.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 32
• Est. completion date: June 2012
• Est. primary completion date: May 2012
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 18 Years to 45 Years

Eligibility

Inclusion Criteria:

• males, recreationally trained football players

• Read and sign the informed consent

Exclusion Criteria:

• Participants that has undertaken a lower body resistance-training program in the preceding 6 months,

• Reported a previous lower limb injury

Related Conditions & MeSH terms

• Injury Prevention
• Wounds and Injuries

Intervention

Other:
• Eccentric hamstring exercises
Three exercises: 3 sets of 8 repetitions with 1 minute of rest between sets and 2 minutes of rest between exercises
• Unistable exercises
Three exercises: 3 sets of 8 repetitions with 1 minute of rest between sets and 2 minutes of rest between exercises
• Control
Only soccer training

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
University of Greenwich

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	knee torque-angle	Isokinetic measurements	1 week